Q: Fill in the blank: In ggplot2, you use the _____ to add layers to your plot.
or
Q: Complete the blank: To add layers to your plot in ggplot2, use the _____.
- The plus sign (+)
- The pipe operator (%>%)
- The equals sign (=)
- The ampersand symbol (&)
Explanation: For the purpose of adding layers to your plot with ggplot2, you may use the addition sign (+). This gives you the ability to gradually construct your visualization by adding various components and layers in order to get a plot that is both complete and interesting.
